A repositionable toilet system for a bathroom or water closet of an RV, camper, boat, or other portable living quarter, allows for a dry bath (including a shower stall that can be somewhat isolated from the toilet) without permanently sacrificing otherwise useful floor space within the living quarter. The toilet is supported on a moveable platform that is repositionable between a stowed position in which the toilet is inside of the shower stall and a deployed/extended position in which the toilet is outside the shower stall. The moveable platform may be locked at the stowed or deployed position during travel or during use of the living quarter. The toilet may be fully self-contained, refillable, and emptyable, or the toilet may be plumbed into the water supply and waste collection system of the RV or camper, such as with flexible supply and drain lines.